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Array.h
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1 /*
2  * This library is free software; you can redistribute it and/or
3  * modify it under the terms of the GNU Lesser General Public
4  * License as published by the Free Software Foundation; either
5  * version 2.1 of the License, or (at your option) any later version.
6  *
7  * This library is distributed in the hope that it will be useful,
8  * but WITHOUT ANY WARRANTY; without even the implied warranty of
9  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
10  * Lesser General Public License for more details.
11  *
12  * You should have received a copy of the GNU Lesser General Public
13  * License along with this library; if not, write to the Free Software
14  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
15  *
16  * Array.h
17  * A macro for determining array size.
18  */
19 
25 #ifndef INCLUDE_OLA_BASE_ARRAY_H_
26 #define INCLUDE_OLA_BASE_ARRAY_H_
27 
28 #include <stdint.h>
29 
30 namespace ola {
31 
43 template <typename T, size_t N>
44  char (&ArraySizeHelper(T (&array)[N]))[N];
45 
54 template <typename T, size_t N>
55  char (&ArraySizeHelper(const T (&array)[N]))[N];
56 
57 
64 #define arraysize(array) (sizeof(ola::ArraySizeHelper(array)))
65 
66 
73 class ArrayDeleter {
74  public:
79  explicit ArrayDeleter(const uint8_t* data) : m_data(data) {}
80 
87  if (m_data) {
88  delete[] m_data;
89  }
90  }
91 
92  private:
93  const uint8_t* m_data;
94 };
95 } // namespace ola
96 #endif // INCLUDE_OLA_BASE_ARRAY_H_
Deletes an array when it goes out of scope.
Definition: Array.h:73
ArrayDeleter(const uint8_t *data)
Create a new ArrayDeleter.
Definition: Array.h:79
~ArrayDeleter()
Destructor.
Definition: Array.h:86
The namespace containing all OLA symbols.
Definition: Credentials.cpp:44